// hooks/useHistoryFeed.ts

import { useMemo } from 'react'

import { mergeAndSort, filterByCategory, groupByDate } from '@/lib/utils/history'

import {

  mapMoodToHistoryCard,

  mapSleepToHistoryCard,

  mapTriggerToHistoryCard,

  mapInterventionToHistoryCard

} from '@/lib/history/mappers'

import type { HistoryCategory } from '@/lib/history/types'

import { useMoodEntries, useSleepRecords } from '@/hooks';

export function useHistoryFeed(activeFilter: HistoryCategory | 'all') {

  const { data: moodsPage }        = useMoodEntries({})

  const { data: sleepPage }        = useSleepRecords({})

  const moods        = moodsPage?.entries ?? []

  const sleepRecords = sleepPage?.entries ?? []

  const grouped = useMemo(() => {

    const merged = mergeAndSort([

      moods.map(mapMoodToHistoryCard),

      sleepRecords.map(mapSleepToHistoryCard),

    ])

    const filtered = filterByCategory(merged, activeFilter)

    return groupByDate(filtered)

  }, [moods, sleepRecords, activeFilter])

  // TODO: expose the isLoading here

  return grouped

}